Citi Bike's Suitor, Jonathan Schulhof, Is a Mystery to Many

Investment Firm Head Has Big Plans for Bike-Sharing

Before he surfaced in a Montreal courtroom in April, few people in the small world of bike-sharing had heard of the New Yorker with access to deep pockets.

Jonathan Schulhof, 40 years old, wanted to buy out of bankruptcy a major supplier of shared bicycles and docking stations where riders park them for systems such as New York's Citi Bike. He told the court of his ambition, according to the Montreal Gazette, to "proliferate...